I just upgraded to Samsung series 4 (44mm) from the Garmin Vivoactive 3. The watch faces are the same size, but the band for the Garmin is way more comfortable and fits
Garmin Vivoactive 3, GPS Smartwatch with Contactless Payments
20mm Band Compatible with Garmin VivoActive 3 / Samsung Galaxy Watch 42mm / Samsung Galaxy Watch Active / Active 2 (40mm) / Garmin Forerunner 245 / 645 Bands Replacement Strap Wristbands | Walmart Canada
Amazon.com: Fintie Compatible with Garmin Vivoactive 3 /Vivoactive 3 Music / Venu Sq / Venu 2 Plus Watch Band, Samsung Galaxy Watch 42mm/Galaxy Watch 3 41mm/Galaxy Watch Active 2 40mm/44mm, 20mm Solid
Hat Prince Garmin Vivoactive 3 Trainer Screen Protector - 2 Pcs.
Garmin Vivoactive 3 vs Samsung Galaxy Watch: What is the difference?
Compare Garmin vivoactive 3 Music vs Samsung Galaxy Watch 4 44mm - Garmin vivoactive 3 Music vs Samsung Galaxy Watch 4 44mm Comparison by Price, Specifications, Reviews & Features | Gadgets Now